Paul Revere's engraving was used as propaganda ( something used to help or harm a cause or individual ) to demand the removal of British troops from Boston.
B. Biosphere (not too sure)
Men were chosen by the draft. You had to sign up and if your number was picked - you left for Vietnam
The only way to get out of the draft was to have a medical deferment, move to Canada or stay in college.
Donald trump had 5 medical deferments for bad feet